POWER TOOL

A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case, a handle portion attached to a rear end of the motor case, and a motor housed inside the motor case. The motor includes a stator, a rotor rotationally arranged inside the stator, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Poetzl, Mark R, Seeley, Timothy J, Kelleher, Joseph P, Lewis, Joshua M, Coates, Marcell E, Purohit, Madhur M, Gallagher, William F, Templeton, Sean R, Robinson, Seth M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR DRESSING OR CONDITIONING OF ABRADING SURFACES DYNAMO-ELECTRIC MACHINES ELECTRICITY FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GENERATION GRINDING HAND TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MANIPULATORS PERFORMING OPERATIONS POLISHING PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
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Beschreibung
Zusammenfassung:	A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case, a handle portion attached to a rear end of the motor case, and a motor housed inside the motor case. The motor includes a stator, a rotor rotationally arranged inside the stator, and a fan in rotational connection with the rotor. At least one air intake is arranged at least one of the motor case or the handle portion near the rear end of the motor case. A power module including power switches and a heat sink is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.